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Incorporating self-supervised learning (SSL) before standard supervised learning (SL) has become a widely used strategy to enhance model performance, particularly in data-limited scenarios. However, this approach introduces a trade-off…

机器学习 · 计算机科学 2025-03-06 Zexin Li , Jiancheng Zhang , Yufei Li , Yinglun Zhu , Cong Liu

Post-training for long-horizon agentic tasks has a tension between compute efficiency and generalization. While supervised fine-tuning (SFT) is compute efficient, it often suffers from out-of-domain (OOD) degradation. Conversely, end-to-end…

Distributed machine learning workloads use data and tensor parallelism for training and inference, both of which rely on the AllReduce collective to synchronize gradients or activations. However, AllReduce algorithms are delayed by the…

机器学习 · 计算机科学 2025-09-30 Arjun Devraj , Eric Ding , Abhishek Vijaya Kumar , Robert Kleinberg , Rachee Singh

Recent years have witnessed growing interest in the use of Artificial Neural Networks (ANNs) for vision, classification, and inference problems. An artificial neuron sums N weighted inputs and passes the result through a non-linear transfer…

新兴技术 · 计算机科学 2016-11-18 Deliang Fan , Yong Shim , Anand Raghunathan , Kaushik Roy

In large-scale LLM pre-training systems with 100k+ GPUs, failures become the norm rather than the exception, and restart costs can dominate wall-clock training time. However, existing fault-tolerance mechanisms are largely unprepared for…

分布式、并行与集群计算 · 计算机科学 2026-05-29 Jin Lee , Zhonghao Chen , Xuhang He , Robert Underwood , Bogdan Nicolae , Franck Cappello , Xiaoyi Lu , Sheng Di , Zheng Zhang

Learning a stable Linear Dynamical System (LDS) from data involves creating models that both minimize reconstruction error and enforce stability of the learned representation. We propose a novel algorithm for learning stable LDSs. Using a…

机器学习 · 计算机科学 2020-11-19 Giorgos Mamakoukas , Orest Xherija , T. D. Murphey

Deep learning is a popular machine learning technique and has been applied to many real-world problems. However, training a deep neural network is very time-consuming, especially on big data. It has become difficult for a single machine to…

分布式、并行与集群计算 · 计算机科学 2019-09-04 Xing Zhao , Aijun An , Junfeng Liu , Bao Xin Chen

The success of DNNs and their high computational requirements pushed for large codesign efforts aiming at DNN acceleration. Since DNNs can be represented as static computational graphs, static memory allocation and tiling are two crucial…

硬件体系结构 · 计算机科学 2025-04-08 Victor J. B. Jung , Alessio Burrello , Francesco Conti , Luca Benini

Despite recent advancements in offline multi-task reinforcement learning (MTRL) have harnessed the powerful capabilities of the Transformer architecture, most approaches focus on a limited number of tasks, with scaling to extremely massive…

机器学习 · 计算机科学 2025-06-02 Yilun Kong , Guozheng Ma , Qi Zhao , Haoyu Wang , Li Shen , Xueqian Wang , Dacheng Tao

The scale of transformer model pre-training is constrained by the increasing computation and communication cost. Low-rank bottleneck architectures offer a promising solution to significantly reduce the training time and memory footprint…

Space-time adaptive processing (STAP) is one of the most effective approaches to suppressing ground clutters in airborne radar systems. It basically takes two forms, i.e., full-dimension STAP (FD-STAP) and reduced-dimension STAP (RD-STAP).…

信息论 · 计算机科学 2022-02-11 Di Song , Shengyao Chen , Feng Xi , Zhong Liu

This paper introduces novel alternate training procedures for hard-parameter sharing Multi-Task Neural Networks (MTNNs). Traditional MTNN training faces challenges in managing conflicting loss gradients, often yielding sub-optimal…

机器学习 · 计算机科学 2025-05-20 Stefania Bellavia , Francesco Della Santa , Alessandra Papini

The rapid advancements in AI, scientific computing, and high-performance computing (HPC) have driven the need for versatile and efficient hardware accelerators. Existing tools like SCALE-Sim v2 provide valuable cycle-accurate simulations…

Biological neural networks are equipped with an inherent capability to continuously adapt through online learning. This aspect remains in stark contrast to learning with error backpropagation through time (BPTT) applied to recurrent neural…

Underwater Sound Speed Profile (SSP) distribution has great influence on the propagation mode of acoustic signal, thus the fast and accurate estimation of SSP is of great importance in building underwater observation systems. The…

音频与语音处理 · 电气工程与系统科学 2025-03-31 Wei Huang , Fan Gao , Junting Wang , Hao Zhang

Deploying Python-based AI agents on resource-constrained edge devices presents a critical runtime optimization challenge: high thread counts are needed to mask I/O latency, yet Python's Global Interpreter Lock (GIL) serializes execution. We…

分布式、并行与集群计算 · 计算机科学 2026-04-14 Mridankan Mandal , Smit Sanjay Shende

Stencil computations are a key class of applications, widely used in the scientific computing community, and a class that has particularly benefited from performance improvements on architectures with high memory bandwidth. Unfortunately,…

分布式、并行与集群计算 · 计算机科学 2017-10-27 Istvan Z Reguly , Gihan R Mudalige , Michael B Giles

In differentially private (DP) tabular data synthesis, the consensus is that statistical models are better than neural network (NN)-based methods. However, we argue that this conclusion is incomplete and overlooks the challenge of densely…

机器学习 · 计算机科学 2025-11-19 Kai Chen , Chen Gong , Tianhao Wang

Optimizing the performance of stencil algorithms has been the subject of intense research over the last two decades. Since many stencil schemes have low arithmetic intensity, most optimizations focus on increasing the temporal data access…

分布式、并行与集群计算 · 计算机科学 2015-10-19 Tareq Malas , Georg Hager , Hatem Ltaief , David Keyes

This work introduces a kernel-independent, multilevel, adaptive algorithm for efficiently evaluating a discrete convolution kernel with a given source distribution. The method is based on linear algebraic tools such as low rank…

数值分析 · 数学 2025-07-11 Anna Yesypenko , Chao Chen , Per-Gunnar Martinsson